Machinery for pickling plates for coating with tin, &amp;c.



P'ATENTED JAN. '6, 1903.

J`. E. LEWIS. MACHINERY FOR. PICKLING PLATES FOR GOATING WITH TIN, zc.

APPLICATION FILED FEB. 19. 1902.

N0 MODEL.

INVENTOR Jui-m ELzw'xs. b3 w bis nome UNITED STATES PATENT OEEICE.

JOHN E. LEWIS, 0F AVENUE, PENNSYLVANIA, ASSIGNOR OF THREE/-FIFTHS T OALLEGHENYSTEEL AND IRON COMPANY, OF PITTSBURG, PENNSYL- VANIA, ACORPORATION 0F PENNSYLVANIA.

MACHlNERY FOR PICKLING PLATES FOR COATING WITH TIN, &c.

SPECIFICATION forming part of Letters Patent No. 717,585, dated January6, 1903.

Application led February 19, 1902. Serial No. 94,796. (No model.)

To a/ZZ whom, it may concern:

Beit known that LJOHN E. LEWIS, a citizen of the United States, residingatl Avenue, in'

the county of Allegheny and State of Pennsylvania, have invented ordiscovered new and useful Improvements in Pickling Mechanism, of whichthe following is a specification.

The gure shows an elevation of my invention with parts in verticalsection.

My invention relates to improvements in machinery for pickling orpreparing plates for being coated with tin or other coating material.

My apparatus is constructed with a support consisting of a verticalcylinder 1. VA hollow piston 2 reciprocates in the cylinder. Thenpperend ot the piston-rod 3 works in the guide 4., which, with the cylinder1, holds the piston in avertical position. Pivoted in the vertical slot5 in the piston-rod is a rocking beam 6, havingarc-shaped ends7 7.Pickling-crates 8 Seare suspended from the beam by means of hooks 9 9,which catch over the top of the arc-shaped ends and to which chains orcables 10 l0 connect the crates.

Extending beyond the ends 7 7 of the beam 6 are arms 11 l1, to which arepivoted clutchblocks 12 12, provided with counterbalancingweighted arms13 13, holding the blocks in the position shown on the drawing whateverthe position of the beam.

14. is arotating shaft carrying the crank 15, connected by the link 16to the upper jaw 16 of the clutch 17 The clutch is in the form of a pairof tongs, whose members 1S and 19 are pivotally connected at 20. Thejaws of the clutch have inwardly-turned lugs 2l, that engage the innersides of the clutch-blocks. The handles of the clutch extend downwardlywithin convenient reach of the operator and are locked together in anyapproved manner, as by the pin 22 passing through alined holes.

Extendingvertically below the beam and secured thereto is an arm 23,held rigidly by the braces 24 24:. The lowerend of the arm 23 isprovided with a wedge-shaped block 2 5.

From the hollow of piston 2 a vertical opening 26 leads into the slot 5.Working within said piston and opening is a locking-piston 27, having atits top a Y-shaped opening 28 to receive the blockl25.

The drawing represents the apparatus in its working position. Therotating shaft 14 causes the beam l to oscillate and the cratessuspended on the chains 10 10 to be agitated in the tanks. When theplates have been sufciently treated, the clutch 17 is freed from theclutch-block 12 and iiuid is admitted below the pistons 2l and 27,causing the latter on account of its relative lightness to rise firstand lock the -beam in its horizontal position. After piston 27 has beenfully elevatel piston 2 rises, carrying the crates out of the tanks. Thebeam is then swung aside and the chains relieved of their loads. I'maytake oft one load, leaving the other load on, or I may load one end ofthe beam before 'loading the other; but in either case the beam remainshorizontal.

My invention is not limited to pickling, but is applicable to varioususes where it is desirable to lock a beam from oscillation.

Having described' my invention, what I claim is 1. In a picklingmechanism, a beam, means for oscillating the beam, meansfor raising thebeam, and means movable relatively to the raising means for locking thebeam from oscillation.

2. In apickling mechanism, an oscillating beam, means for raising thebeam, means detachable therefrom for oscillating the beam,

and means for locking the beam from oscillation.

3. An oscillating beam, means for raising and oscillating the same, andmeans distinct and separate from the oscillating means for locking thebeam from oscillation.

4. A beam and means for oscillating it, and telescopic hydraulic meansfor raising the beam and locking it fromoscillation, said locking meansbeing distinct and separate from the said oscillating means.

5. A beam and means foroscillating it, power mechanism for raising thebeam and means operated by the same power that raises the beam forlocking the beam from osci1lation, said locking means being distinct andthereon, a clutch therefor having jaws into Io separate from the saidoscillating means. which the block is receivable.

6. In a pickling mechanism, an oscillating Signed at Tarentum this 4thday of Febbeam, p1ate-ho1ders carried thereby, a clutch- I ru ary, 1902.block on the beam,means for raising the beam, I

a rotary shaft, a clutch engageable with the JOHN E' LEWIS' clutch-blockand means connecting the clutch Witnesses: and shaft. BENJAMIN EDWARDS,

7. A beam, a balanced pivoted clutch-block F. E. DENNY.

